4ETSI. Electromagnetic compatibility and Radio spectrum Matters (ERM)[S]. Digital Mobile Radio (DMR) Systems; Part 1 : DMR Air Interface (AI) Protocol, TS 102 361 -1, 2007.
5ETSI. Electromagnetic compatibility and Radio spectrum Matters (ERM) [S]. Digital Mobile Radio (DMR) Systems; Part 4: DMR Trunking Protocol, TS 102 361 -4, 2006.
6ETSI. Electromagnetic compatibility and Radio spectrum Matters (ERM) [ S ]. Peer - to - Peer Digital Private Mobile Radio Using FI)MA with a Channel Spacing of 6, 25 kI-Iz with e. r. p. of up to 500 MW, TS 102 490, 2010.
7EISI. Electromagnetic compatibility and Radio spectrum Matters (ERM)[S]. Digital Private Mobile Radio (dPMR) Using FDMA with a Channel Spacing of 6, 25 kHz, TS 102 658, 2010.
